Winchester Repeating Arms 1400 (Historic Manual) - Manual (Page 7)

8. Replace the valve assembly back
onto the magazine and turn until “hand
tight”.
HOW TO LOAD — Use the correct
ammunition referenced by the
inscription on the barrel. Before
loading your gun be sure all grease and
oil has been removed from the barrel
and chamber, and there is no
obstruction.
1. Pull the cocking handle all the way
back until the breech bolt latches open.
2. Place the safety in the “on” position.
The chamber can now be loaded by
inserting a shell directly into the
ejection port (Figure 5).
3. Keep your fingers clear of the
ejection port and press the action
release button (Figure 1A) on the under
side of the receiver. The action will
snap closed placing the shell in the
chamber. The gun is now ready to be
fired single shot.